D&CG: LESSON 8. Nuts and bolts- square headed, hexagonal, types of lock nuts, studs, machine screws, cap screw and wood screw, foundation bolts
Engineering drawing
Metal bolts. Nuts group. Hatched drawing. Technical drafting. Steel screws. Threaded parts with hexagonal head. Blue lock washer. Professional project Stock Photo - Alamy
U.S. Standard Hexagonal Bolt Head | ClipArt ETC
Solved Draw the following isometric Views for the following | Chegg.com